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It can be confirmed that the Galaxy S10 includes a 6.1-inch QHD AMOLED curved display, front camera punch setting, 3-in-1 rear camera, power/volume/Bixby button, USB-C port, 3.5mm headphone jack, no visible fingerprint reader (because it is embedded in the display).
Here is the Galaxy S10e, equipped with a 5.8-inch QHD flat panel display, front camera punch, narrow bezel, volume / Bixby button, USB-C port and 3.5mm headphone jack. Although the fingerprint reader is not displayed in front or behind, we are very sure that Samsung is using the side Home button as a fingerprint reader, similar to what Razer and RED have done in recent years.
There are also some details about how these two new machines arrange buttons, speakers, and headphones: